Git allows a buffer overflow in 'wincred' credential helper
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 2.43.7, 2.44.4, 2.45.4, 2.46.4, 2.47.3, and 3 more
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
Git is a fast, scalable, distributed revision control system with an unusually rich command set that provides both high-level operations and full access to internals. The wincred credential helper uses a static buffer (target) as a unique key for storing and comparing against internal storage. This credential helper does not properly bounds check the available space remaining in the buffer before appending to it with wcsncat(), leading to potential buffer overflows. This vulnerability is fixed in v2.43.7, v2.44.4, v2.45.4, v2.46.4, v2.47.3, v2.48.2, v2.49.1, and v2.50.1.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- git git
fixed in 2.43.7; From 2.44.0-rc0 · fixed in 2.44.4; From 2.45.0-rc0 · fixed in 2.45.4; From 2.46.0-rc0 · fixed in 2.46.4; From 2.47.0-rc0 · fixed in 2.47.3; From 2.48.0-rc0 · fixed in 2.48.2; From 2.49.0-rc0 · fixed in 2.49.1; From 2.50.0-rc0 · fixed in 2.50.1